/*-------------------------------------------------------------------------
 *
 * plancat.h
 *      prototypes for plancat.c.
 *
 *
 * Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * This source code file contains modifications made by THL A29 Limited ("Tencent Modifications").
 * All Tencent Modifications are Copyright (C) 2023 THL A29 Limited.
 *
 * src/include/optimizer/plancat.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef PLANCAT_H
#define PLANCAT_H

#include "nodes/relation.h"
#include "utils/relcache.h"

#ifdef __OPENTENBASE__
extern int     ParentTablePageSampleThreshold;
extern int     ParentTablePageSampleRate;
#endif

/* Hook for plugins to get control in get_relation_info() */
typedef void (*get_relation_info_hook_type) (PlannerInfo *root,
                                             Oid relationObjectId,
                                             bool inhparent,
                                             RelOptInfo *rel);
extern PGDLLIMPORT get_relation_info_hook_type get_relation_info_hook;


extern void get_relation_info(PlannerInfo *root, Oid relationObjectId,
                  bool inhparent, RelOptInfo *rel);

extern List *infer_arbiter_indexes(PlannerInfo *root);

extern void estimate_rel_size(Relation rel, int32 *attr_widths,
                  BlockNumber *pages, double *tuples, double *allvisfrac);

extern int32 get_relation_data_width(Oid relid, int32 *attr_widths);

extern bool relation_excluded_by_constraints(PlannerInfo *root,
                                 RelOptInfo *rel, RangeTblEntry *rte);

extern List *build_physical_tlist(PlannerInfo *root, RelOptInfo *rel);

extern bool has_unique_index(RelOptInfo *rel, AttrNumber attno);

extern Selectivity restriction_selectivity(PlannerInfo *root,
                        Oid operatorid,
                        List *args,
                        Oid inputcollid,
                        int varRelid);

extern Selectivity join_selectivity(PlannerInfo *root,
                 Oid operatorid,
                 List *args,
                 Oid inputcollid,
                 JoinType jointype,
                 SpecialJoinInfo *sjinfo);

extern bool has_row_triggers(PlannerInfo *root, Index rti, CmdType event);

#endif                            /* PLANCAT_H */
